As people move more often and become more urbanized, skin color -- an adaptation that took hundreds of thousands of years to develop in humans -- may lose some of its evolutionary advantage, according to a Penn State anthropologist.
Fuente : http://www.eurekalert.org/pub_releases/2013-02/ps-...
Fuente : http://www.eurekalert.org/pub_releases/2013-02/ps-...